McKesson Prevent HP Push-Button Safety Lancets feature the HP-Haemolance Plus design and safety features such as automatic needle retraction and lock out which help prevent needlestick injuries and reduce the risk of cross-infection while still delivering the proper amount of blood for different capillary tests. - Color: Orange. 28 Gauge Needle. Depth Setting: 1.0 mm. Sterile. Features HP-Haemolance Plus design and safety features. Automatic needle retraction and lock out. Helps prevent needlestick injury; reduces cross-infection risk. Easy to use in just two steps. Derives proper amount of blood for different capillary tests. Single use only.